公开(公告)号：US20200166867A1

公开(公告)日：2020-05-28

申请号：US16683534

申请日：2019-11-14

申请人： Masashi NAGAYAMA ,  Hiroyuki KISHIDA ,  Masahiro SEKI ,  Yoshimichi ISHIKAWA ,  Saori YAMADA

发明人： Masashi NAGAYAMA ,  Hiroyuki KISHIDA ,  Masahiro SEKI ,  Yoshimichi ISHIKAWA ,  Saori YAMADA

IPC分类号： G03G15/08

摘要： A carrier for forming an electrophotographic image is provided. The carrier includes a core particle comprising a manganese-based ferrite particle having an apparent density of from 2.0 to 2.2 g/cm3 and a magnetization of from 44 to 52 emu/g in a magnetic field of 500 Oe; and a coating layer coating a surface of the core particle. The coating layer contains a carbon black, an inorganic particle A, and an inorganic particle B. The inorganic particle A and the carbon black each have a concentration gradient in a thickness direction of the coating layer. A concentration of the inorganic particle A increases toward a surface of the coating layer, and a concentration of the carbon black decreases toward the surface of the coating layer.

公开(公告)号：US20130260307A1

公开(公告)日：2013-10-03

申请号：US13826791

申请日：2013-03-14

申请人： Masashi Nagayama ,  Hisashi Nakajima ,  Saori Yamada ,  Shinya Hanatani ,  Mariko Takii ,  Yoshitaka Sekiguchi

发明人： Masashi Nagayama ,  Hisashi Nakajima ,  Saori Yamada ,  Shinya Hanatani ,  Mariko Takii ,  Yoshitaka Sekiguchi

IPC分类号： G03G9/08 ,  G03G21/18 ,  G03G13/20

CPC分类号： G03G9/08 ,  G03G9/081 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08795 ,  G03G9/08797 ,  G03G13/20 ,  G03G21/18

摘要： A toner including a crystalline polyester resin (A), an amorphous resin (B), and a composite resin (C) having a condensation polymerization resin unit and an addition polymerization resin unit is provided. A molecular weight distribution of the toner based on THF-soluble contents thereof has a main peak within a molecular weight range from 1,000 to 10,000 and a half bandwidth of the main peak is 15,000 or less. The molecular weight distribution is determined by gel permeation chromatography. The toner includes chloroform-insoluble contents. A ratio C/R of the toner is within a range from 0.03 to 0.55. C and R represent heights of spectrum peaks specific to the crystalline polyester resin (A) and the amorphous resin (B), respectively, determined by a Fourier transform infrared spectroscopic attenuation total reflection method after the toner is stored in a thermostatic chamber at 45° C. for 12 hours.

摘要翻译： 提供了包含结晶聚酯树脂（A），无定形树脂（B）和具有缩聚树脂单元和加成聚合树脂单元的复合树脂（C）的调色剂。 基于THF可溶物含量的调色剂的分子量分布具有在1,000至10,000的分子量范围内的主峰，并且主峰的半带宽为15,000以下。 分子量分布通过凝胶渗透色谱法测定。 该调色剂包括不溶于氯仿的内容物。 调色剂的比例C / R在0.03〜0.55的范围内。 C和R分别表示在将调色剂储存在45℃的恒温槽中之后，通过傅立叶变换红外光谱衰减全反射法测定的结晶性聚酯树脂（A）和非晶质树脂（B）特有的光谱峰的高度 C.持续12小时。

公开(公告)号：US20130252160A1

公开(公告)日：2013-09-26

申请号：US13617957

申请日：2012-09-14

申请人： Masashi NAGAYAMA ,  Mitsuo Aoki ,  Hisashi Nakajima ,  Saori Yamada ,  Mariko Takii

发明人： Masashi NAGAYAMA ,  Mitsuo Aoki ,  Hisashi Nakajima ,  Saori Yamada ,  Mariko Takii

IPC分类号： G03G9/087 ,  G03G15/08

CPC分类号： G03G9/08755 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/08722 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08737 ,  G03G9/08766 ,  G03G9/08782 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0975 ,  G03G15/0889

摘要： A toner for forming an electrophotographic image is provided, wherein the toner includes at least four types of binder resins, wherein the binder resins includes at least: a crystalline polyester resin (A); a non-crystalline resin (B); a non-crystalline resin (C); and a composite resin (D) which includes a condensation polymerization resin unit and an addition polymerization resin unit, wherein the non-crystalline resin (B) includes a chloroform insoluble matter, wherein the non-crystalline resin (C) has a softening temperature (T½) lower than that of the non-crystalline resin (B) by 25° C. or more, and wherein the toner has a main peak between 1,000 to 10,000 in a molecular weight distribution obtained by GPC from a tetrahydrofuran soluble matter, and the toner has a half-value width of the molecular weight distribution of 15,000 or less.

摘要翻译： 提供了用于形成电子照相图像的调色剂，其中调色剂包括至少四种类型的粘合剂树脂，其中粘合剂树脂至少包括：结晶聚酯树脂（A）; 非结晶性树脂（B）; 非结晶性树脂（C）; 和包含缩聚树脂单元和加成聚合树脂单元的复合树脂（D），其中所述非结晶性树脂（B）包括氯仿不溶物，其中所述非结晶性树脂（C）具有软化温度 T 1/2）比非结晶性树脂（B）低25℃以上，并且其中调色剂在通过GPC从四氢呋喃可溶物质获得的分子量分布中具有在1,000至10,000之间的主峰，并且 调色剂的分子量分布的半值宽度为15,000以下。

公开(公告)号：US09128398B2

公开(公告)日：2015-09-08

申请号：US13617957

申请日：2012-09-14

申请人： Masashi Nagayama ,  Mitsuo Aoki ,  Hisashi Nakajima ,  Saori Yamada ,  Mariko Takii

发明人： Masashi Nagayama ,  Mitsuo Aoki ,  Hisashi Nakajima ,  Saori Yamada ,  Mariko Takii

IPC分类号： G03G9/087 ,  G03G15/08 ,  G03G9/08 ,  G03G9/097

CPC分类号： G03G9/08755 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/08722 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08737 ,  G03G9/08766 ,  G03G9/08782 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0975 ,  G03G15/0889

摘要： A toner for forming an electrophotographic image is provided, wherein the toner includes at least four types of binder resins, wherein the binder resins includes at least: a crystalline polyester resin (A); a non-crystalline resin (B); a non-crystalline resin (C); and a composite resin (D) which includes a condensation polymerization resin unit and an addition polymerization resin unit, wherein the non-crystalline resin (B) includes a chloroform insoluble matter, wherein the non-crystalline resin (C) has a softening temperature (T½) lower than that of the non-crystalline resin (B) by 25° C. or more, and wherein the toner has a main peak between 1,000 to 10,000 in a molecular weight distribution obtained by GPC from a tetrahydrofuran soluble matter, and the toner has a half-value width of the molecular weight distribution of 15,000 or less.

摘要翻译： 提供了用于形成电子照相图像的调色剂，其中调色剂包括至少四种类型的粘合剂树脂，其中粘合剂树脂至少包括：结晶聚酯树脂（A）; 非结晶性树脂（B）; 非结晶性树脂（C）; 和包含缩聚树脂单元和加成聚合树脂单元的复合树脂（D），其中所述非结晶性树脂（B）包括氯仿不溶物，其中所述非结晶性树脂（C）具有软化温度 T 1/2）比非结晶性树脂（B）低25℃以上，并且其中调色剂在通过GPC从四氢呋喃可溶物质获得的分子量分布中具有在1,000至10,000之间的主峰，并且 调色剂的分子量分布的半值宽度为15,000以下。

公开(公告)号：US20150248074A1

公开(公告)日：2015-09-03

申请号：US14625143

申请日：2015-02-18

申请人： Kazumi Suzuki ,  Hisashi Nakajima ,  Masashi Nagayama ,  Saori Yamada ,  Yoshitaka Yamauchi ,  Yu Naito

发明人： Kazumi Suzuki ,  Hisashi Nakajima ,  Masashi Nagayama ,  Saori Yamada ,  Yoshitaka Yamauchi ,  Yu Naito

IPC分类号： G03G9/00

CPC分类号： G03G9/0821 ,  G03G9/0904 ,  G03G9/0914 ,  G03G9/0918 ,  G03G9/092 ,  G03G9/0924 ,  G03G9/0926

摘要： A red toner for developing an electrostatic latent image includes a colorant and a binder resin. An image produced by the red toner has a hue angle (H) of from 36 to 50° in L*a*b* color system, a lightness (L*) of from 47 to 55, and a chroma (c*) of from 94 to 108.

摘要翻译： 用于显影静电潜像的红色调色剂包括着色剂和粘合剂树脂。 由红色调色剂产生的图像在L * a * b *色系中具有36至50°的色调角（H），从47至55的亮度（L *）和色度（C *）为 从94到108。

公开(公告)号：US20140348550A1

公开(公告)日：2014-11-27

申请号：US14278119

申请日：2014-05-15

申请人： Masashi NAGAYAMA ,  Hisashi NAKAJIMA ,  Yoshitaka SEKIGUCHI ,  Saori YAMADA ,  Shinya HANATANI ,  Mariko TAKII ,  Hiroshi Hosokawa ,  Shunji KATOH ,  Shinji TAMAKI ,  Hiroshi IKEGUCHI ,  Kenji KIKUCHI ,  Michiharu SUZUKI

发明人： Masashi NAGAYAMA ,  Hisashi NAKAJIMA ,  Yoshitaka SEKIGUCHI ,  Saori YAMADA ,  Shinya HANATANI ,  Mariko TAKII ,  Hiroshi Hosokawa ,  Shunji KATOH ,  Shinji TAMAKI ,  Hiroshi IKEGUCHI ,  Kenji KIKUCHI ,  Michiharu SUZUKI

IPC分类号： G03G15/08

CPC分类号： G03G15/0839 ,  G03G9/08755 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/0872 ,  G03G15/0877

摘要： Toner housing container includes: container body housing a toner; conveying portion conveying the toner from longer direction one end of container body to its other end at which container opening portion is provided; pipe receiving port receiving a conveying pipe fixed to toner conveying device; and uplifting portion moving the toner toward toner receiving port of conveying pipe. Toner has molecular weight distribution having a peak in a range of 103 to 104, and has C/R of from 0.03 to 0.55 between peak height C attributed to crystalline polyester resin and R attributed to non-crystalline resin when measured by FT-IR after stored at 45° C. for 12 hours. Container body includes protruding portion protruding from container body interior side toward the one end. Uplifting portion includes uplifting wall surface extending from container body internal wall surface toward protruding portion. Protruding portion is present between uplifting wall surface and toner receiving port.

摘要翻译： 调色剂容器容器包括：容纳调色剂的容器主体; 输送部，其将调色剂从容器主体的长度方向的一端输送到设置有容器开口部的另一端; 管道接收端口接收固定到调色剂输送装置的输送管; 以及将调色剂移动到输送管的调色剂接收口的提升部分。 调色剂的分子量分布在103〜104的范围内具有峰值，并且归因于结晶性聚酯树脂的峰高度C和归因于非结晶性树脂的R的C / R为0.03〜0.55，通过FT-IR测定后 在45℃下储存12小时。 容器主体包括从容器主体内侧朝向一端突出的突出部。 上升部分包括从容器主体内壁表面向突出部分延伸的提升壁表面。 凸起部分存在于提升壁表面和调色剂接收口之间。

公开(公告)号：US08652738B2

公开(公告)日：2014-02-18

申请号：US13181702

申请日：2011-07-13

申请人： Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Hitoshi Iwatsuki ,  Mariko Takii ,  Toyoshi Sawada ,  Toyoaki Tano ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hiroyuki Kishida ,  Saori Yamada

发明人： Kimitoshi Yamaguchi ,  Shigenori Yaguchi ,  Hitoshi Iwatsuki ,  Mariko Takii ,  Toyoshi Sawada ,  Toyoaki Tano ,  Hiroshi Tohmatsu ,  Koichi Sakata ,  Hiroyuki Kishida ,  Saori Yamada

IPC分类号： G03G13/08 ,  G03G9/00

CPC分类号： G03G9/1139 ,  G03G9/107 ,  G03G9/1136 ,  G03G2215/0609

摘要： A contact developing method including supplying a two-component developer to an electrostatic latent image on a rotating image bearing member by rotating a developing sleeve and a rotatable magnet having multiple magnetic poles provided inside the developing sleeve, to develop the electrostatic latent image into a toner image. The developing sleeve and the image bearing member rotate in the same direction while facing each other. The two-component developer comprises a non-magnetic toner and a carrier. The carrier comprises a magnetic core particle and a resin layer covering the magnetic core particle. The resin layer comprises a conductive particle and a resin. The conductive particle comprises an alumina-based material and a conductive layer covering the alumina-based material. The resin is obtained by heating a copolymer comprising a monomer A unit and a monomer B unit.

摘要翻译： 一种接触显影方法，包括通过旋转显影套筒和旋转图像承载部件上的静电潜像向设置在显影套筒内部的具有多个磁极的可旋转磁体提供双组分显影剂，以将静电潜像显影成调色剂 图片。 显影套筒和图像承载部件在相互面对的同时旋转。 双组分显影剂包括非磁性调色剂和载体。 载体包括磁芯颗粒和覆盖磁芯颗粒的树脂层。 树脂层包括导电颗粒和树脂。 导电粒子包括氧化铝基材料和覆盖氧化铝基材料的导电层。 树脂通过加热包含单体A单元和单体B单元的共聚物而获得。

公开(公告)号：US20130260302A1

公开(公告)日：2013-10-03

申请号：US13826742

申请日：2013-03-14

申请人： Hisashi Nakajima ,  Saori Yamada ,  Masashi Nagayama ,  Mariko Takii ,  Shinya Hanatani

发明人： Hisashi Nakajima ,  Saori Yamada ,  Masashi Nagayama ,  Mariko Takii ,  Shinya Hanatani

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09783 ,  G03G9/09791

摘要： A toner, including: crystalline resin; non-crystalline resin; and a composite resin, wherein the crystalline resin is crystalline polyester resin (A), the non-crystalline resin comprises: non-crystalline resin (B) containing chloroform insoluble matter; and non-crystalline resin (C) having a softening temperature (T½) lower than that of the non-crystalline resin (B) by 25° C. or more, an absolute value |Tgc−Tgb| of a difference between a glass transition temperature (Tgc) of non-crystalline resin (C) and a glass transition temperature (Tgb) of non-crystalline resin (B) is 10° C. or lower, wherein the composite resin is composite resin (D) containing a condensation polymerization resin unit and an addition polymerization resin unit, and the toner has a molecular weight distribution having a main peak in 1,000 to 10,000 and a half width of 15,000 or less, where the molecular weight distribution is obtained by gel permeation chromatography (GPC) of tetrahydrofuran (THF) soluble matter of the toner.

摘要翻译： 调色剂，包括：结晶树脂; 非结晶树脂; 和复合树脂，其中所述结晶性树脂为结晶性聚酯树脂（A），所述非结晶性树脂包含：含有氯仿不溶物的非结晶性树脂（B） 和比非结晶性树脂（B）的软化温度（T 1/2）低25℃以上的非结晶性树脂（C）的绝对值| Tgc-Tgb | 非结晶性树脂（C）的玻璃化转变温度（Tgc）与非结晶性树脂（B）的玻璃化转变温度（Tgb）之差的差为10℃以下，其中复合树脂为复合树脂 （D），其含有缩聚树脂单元和加成聚合树脂单元，调色剂具有主峰分布在1000至10,000，半宽度为15,000或更小的分子量分布，其中分子量分布通过凝胶 四氢呋喃（THF）可溶物质的渗透色谱（GPC）。

公开(公告)号：US08518626B2

公开(公告)日：2013-08-27

申请号：US13037569

申请日：2011-03-01

申请人： Saori Yamada ,  Minoru Masuda ,  Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Yutaka Takahashi ,  Toyoaki Tano ,  Mariko Takii

发明人： Saori Yamada ,  Minoru Masuda ,  Hisashi Nakajima ,  Kimitoshi Yamaguchi ,  Koichi Sakata ,  Hitoshi Iwatsuki ,  Yutaka Takahashi ,  Toyoaki Tano ,  Mariko Takii

IPC分类号： G03G9/00

CPC分类号： G03G9/113 ,  G03G9/1075 ,  G03G9/1131 ,  G03G9/1133 ,  G03G9/1137

摘要： The carrier is used for a two-component developer for developing an electrostatic latent image, and includes a particulate magnetic core material; and a cover layer located on a surface of the particulate magnetic core material and including a crosslinked material. The crosslinked material is formed by hydrolyzing a copolymer including at least a unit (A) having a specific acrylic siloxane structure including a tris(trialkylsiloxy)silanyl group and a unit (B) having a specific acrylic silicone structure to form a material having a silanol group, and subjecting the material having a silanol group to a condensation reaction using an organic zirconium-containing catalyst.

摘要翻译： 载体用于显影静电潜像的双组分显影剂，并且包括颗粒状磁芯材料; 以及位于所述颗粒状磁芯材料的表面上并且包含交联材料的覆盖层。 交联材料通过水解包含至少具有包含三（三烷基甲硅烷氧基）硅烷基的特定丙烯酸硅氧烷结构的单元（A）和具有特定丙烯酸硅氧烷结构的单元（B））的共聚物形成，以形成具有硅烷醇的材料 并使用含有有机锆的催化剂对具有硅烷醇基的材料进行缩合反应。

公开(公告)号：US08168363B2

公开(公告)日：2012-05-01

申请号：US12351129

申请日：2009-01-09

申请人： Yasuo Imura ,  Hiroshi Onda ,  Yoritaka Tsubaki ,  Saori Yamada

发明人： Yasuo Imura ,  Hiroshi Onda ,  Yoritaka Tsubaki ,  Saori Yamada

IPC分类号： G03G5/00

CPC分类号： G03G9/0827 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/08782

摘要： A toner is so configured as to satisfy the following conditions: (b)/(a) is from 0.90 to 1.02, (a) is from 140 to 150 and the average value in the entire toner particles of a shape factor SF-2 of the toner particles is larger than 140, where (a) represents a shape factor SF-2 showing the degree of irregularity on the surface of toner particles having a particle size D75V or less which is a particle size at which a cumulative volume from a large particle size side in particle size distribution by volume is 75%, and (b) represents a shape factor SF-2 of toner particles having a particle size D25V or more which is a particle size at which a cumulative volume from a large particle size side in particle size distribution by volume is 25%.

摘要翻译： 调色剂被配置为满足以下条件：（b）/（a）为0.90至1.02，（a）为140至150，并且整个调色剂颗粒中的形状因子SF-2的平均值为 调色剂颗粒大于140，其中（a）表示形状因子SF-2，表示颗粒尺寸D75V以下的调色剂颗粒的表面的不规则度，其为从大的累积体积的粒径 粒径分布体积的粒径侧为75％，（b）表示粒径D25V以上的调色剂粒子的形状因子SF-2，粒径为粒径大的粒子的累积体积的粒径 粒径分布为25％。